Land-speed racing has been dominated by the internal-combustion engine for more than a century, but Håkansson and Dubé have devoted their time and income to proving that electric vehicles can be every bit as fast as their fuel-powered counterparts. This isn’t to say that the couple are adrenaline junkies; rather, they are interested in the scientific challenge. Both are trained mechanical engineers, and they built the KillaJoule themselves, in their garage, in Denver, Colorado. Håkansson serves as the driver because she is relatively small, which allows for a shorter, narrower, and more aerodynamic vehicle design.